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Jacob Willekens

Dutch admiral

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 21, 2026
Entity authorityQ6119464
Source-derived summary

Jacob Willekens or Wilckens (1564–1649) was a Dutch admiral on a fleet to the Dutch Indies, and a herring seller, who went to sea again at the age of fifty for the Dutch West Indies Company. His best-known success was the conquest of São Salvador da Bahia, the then capital of Brazil.

His fleet, which included Dutch corsair Piet Hein as vice admiral, departed from Texel on December 22, 1623, with between 26 and 36 ships and 3,300 sailors towards South America. At the beginning of June 1624, they began their attack from sea and soon captured the Portuguese stronghold with little resistance. They occupied Bahia for over a year before the local population took up arms under acting governor Matias de Albuquerque and Archbishop Dom Marcos Teixeira who eventually expelled them with the help of a combined Spanish-Portuguese fleet numbering 52 warships and 12,000 soldiers in May 1625. This was the first major WIC privateering expedition to the region.

He was also planning to participate in an attack on Rio de Janeiro with Hein in 1626, but after a dispute over who would be in command, the two separated with Willekens returning to Amsterdam. Willekens joined the vroedschap in 1639 and the Admiralty of Amsterdam. He was buried in the Zuiderkerk in 1649.

Editorial summary

Begin with the source’s own compact description: “Jacob Willekens” is dutch admiral. The dossier treats that line as a proposition to test through Jacob, Willekens and Dutch, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1564, 1649, 1623, 1624—that can be checked directly. The linked authority record independently contributes the date 1564. For this dossier, Jacob, Willekens and Dutch is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “dutch admiral” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated May 21, 2026. The linked authority identifier is Q6119464. VIAF identifies the subject as 1689151595763805470001. The Library of Congress control number is n82204397. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1564, 1649, 1623 and 1624.

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Source & attribution

This entry incorporates text from Jacob Willekens” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.